Governor.



No. 721,346. PATENTBD MAR. 3, 1903.

L. J. WATSON.

GOVERNOR.

APPLIGATION FILED AUG. 28, 1902.

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UNITED Y' STATEs PATENT OFFICE.

LESLIE J. WATSON, OF PORT HURON` MICHIGAN, ASSIGNOR OF ONE-HALF TO GEORGE. F. CONNER, OF PORT HURON, MICHIGAN.

GOVERNOR.

SPECIFICATION forming part of Letters Patent N o. 721,846, dated March 3, 1903.

Application le'cl August 28, 1902.

To all whom, t may concern:

Be it known that I, LESLIE J. WATSON, a citizen of the United States, residing at Port Huron, in the county of St. Clair and State 'of Michigan, have invented certain new and useful Improvements in Governors; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as Will enable others skilled in the artto which lo it appertains to make and use tbesame.

My invention relates to governors, and more particularly to that class of governors used in regulating the opening and closing of steam-engine valves.

.I5 In the governors now in common` use the speed is increased or diminished by the automatic instrumentality of governor balls or Weights operatively associated with the valves.

2o My invention contemplates the use in connection with the above of an adjusting attachment whereby the speed of said govlernor may be increased or diminished byauxiliary means at will and means for retaining the various parts in their adjusted positions,

all to be hereinafter more particularly described.

My improvements will be readily understood from the following description, in connection with the accompanying drawings, wherein an embodiment of the invention is illustrated, and in which- Figure l is a front elevation, partly in section, of my `governor complete, showing its 3 5 application to a steam-engine or other valve;

and Figs. 2, 3, and 4 are detail'views.

In the drawings, A represents the support for the governor, placed over the valve and having the legs A' A2.

4o B represents an ordinary centrifugal ballgovernor operatively connected in any desirable manner to the valve-stem C of the valve D. Attached to the lower sleeve d of the governor and made integral therewith is a beveled pinion or friction-disk E. The valvestem C passes through the pinion and sleeve and terminates at its upper end in a head or abutment C2, which normally rests in the seat cl2 of the upper sleeve d of the governor.

5o The means employed by me for increasing or diminishing the speed of the governor con- Serial No. 121,316. (No model.)

sists in providing a beveled pinion or friction-disk F, complementary to the pinion or disk E, referred to above, and the speed of said diskE and the governor connected thereto is increased or diminished, as the case may be, according to its point of contact With the disk F, which latter is carried by the shaft G, connected to the wheel H, which Wheel is in turn in communication with the driven 6o parts of the engine through the medium of a belt. (Not shown.) In order to secure the necessary. adjustment of the disk F toward land from the center of the disk E and into and out of contact therewith, I provide a sleeve I, having its interior formed with a spiral thread, and an operating-lever J, rigidly secured thereto by means of a set-screwj.

At the inner end of the sleeve I, I provide an oil-shield t', the purpose of which is to pro- 7c tect the disks from the waste oil escaping at the ends of the sleeve I.

Forming a support for the speed-changing attachment just described is an upwardlycurved arm or extension K of the main support A, the said curved arm -K terminating in an elongated bearing L, spirally grooved on its interior and through which lpasses the sleeve I and shaft G.

In the upper portion of the leg A2 is an 8o aperture through which passes the screwthreaded stem of a hand-wheel M. Abutting the end of this stem is a spring N, which is guided by a rod n, fitting loosely in the stem and having an arrow-head at its opposite end constituting the abutment for the other end of the spring, said arrow-head of the rod being seated in a suitable recess or seat in the depending arm o', rigidly secured to a horizontally-disposed rod O, pivoted in the legs 9o A' A2 of the support A, as shown. At approximately the center of this pivoted rod a second arm o2 is rigidly secured in a substantially horizontal position, so that the free end of the same will loosely engage a grooved collar o3 on the valve-stem.

From the above description the operation of my governor will be apparent. When it is desired to increase or diminish the speed of the governor and at the same time the roc valve opening, the lever J is moved either to the right or left, which turns the threaded sleeve in its bearing and operates to carry its friction pinion or disk F toward or from the center of the conical or beveled portion of the friction pinion or disk E, thereby increasing or diminishing the speed of the governor. If so desired, the bevel-surfaces of the disk F may be drawn entirely out of contact with that of the disk E. When the parts are adjusted, the set-screw J' is tightened to secure the sleeve I in place. In order to maintain suitable pressure between the frictional gears or disks E and F, and hence a positive drive, the screw-threaded handwheel M is turned to the right or left, which operates to move the valve-stem up or down through the lnedium of the pivoted rod O and its arms. It will thus be seen that the valve will not only be raised and lowered, but by reason of the heads C2 of the stem C contacting with the seat d2 the disk E will be forced into engagement with the disk Fin its adjusted position. The spring N allows a slight but suf- Iicient play for the valve-stem when moved automatically by the governor.

It is to be understood that many minor changes might be made without in the least departing from the spirit of the invention.

Having thus described my invention, what is claimed as new, and desired to be secured by Letters Patent, is-

1. A governor of the character described provided with speed-changing gearing,means for normally maintaining contact between the gearing and means for shifting one of lthe gears across the face of its opposing gear; substantially as described.

2. In a governor of the character described, speed-changing gearing comprising frictiondisks, means for shifting one of said disks across the face of its opposing gear 'to change the point of contact, comprising a sleeve adapted to contact with said movable disk, a bearing for said sleeve, means for shifting said sleeve in its bearing, and a shaft passing through said sleeve and connected to said movable disk; substantially as described.

3. In a governor of the character described, speed-changing gearing comprising frictiondisks, means for shifting one of said disks across the face of its opposing gear to change the point of contact, comprisinga sleeve contacting at one end with said movable disk, said sleeve being exteriorly threaded, a bearing having a correspondingly-threaded interior for said sleeve, means for turning said sleeve to advance or retract the same in its bearing, and a shaft passing through said sleeve and connected to the movable disk; substantially as described.

4. In a govern or of the character described, speed-changing gearing comprising frictiondisks, means for shifting one of said disks across the face of its opposing gear to change the point of contact, comprising a sleeve adapted to contact with said movable disk, a bearing for said sleeve, means for shifting said sleeve in its bearing, means for locking the sleeve in adjusted position, and a shaft passing through said sleeve and connected to said movable disk; substantially as described.

5. In a governor of the character described, friction-gearing comprising friction -disks adapted to contact, one of said friction-disks being secured to the governor, a shaft connected with the other friction-disk, a bearing for said shaft, and an oil-shield t' at the end of the shaft adjacent to the disk carried thereby; substantially as and for the purpose described.

6. In a governor of the character described, speed-changing gearing comprising frictiondisks, means for shifting one of said disks across the face of its opposing gear to change the point of contact, and means for normally maintaining the disks in contact, said lastmentioned means being independent of the adjusting means for the movable disk; substantially as described.

7. In a governor of the character described, friction gearing, and means for normally maintaining a forced contact between the friction-gearing comprisingr adjustable mechanism associated with the governor-rod; substantially as described.

8. In a governor of the character described, friction-gearing, and means for normally maintaining a forced contact between the gearing comprising yieldable adjusting mechanism associated with the governor-rod; substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

LESLIE J. WATSON.

Witnesses:

G. F. CONNER, D. E. PURDY.

IOO 

